package com.yz.gulimall.order.web;

import com.yz.common.exception.NoStockException;
import com.yz.gulimall.order.service.OrderService;
import com.yz.gulimall.order.vo.OrderConfirmVo;
import com.yz.gulimall.order.vo.OrderSubmitVo;
import com.yz.gulimall.order.vo.SubmitOrderRespVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import java.util.concurrent.ExecutionException;

/**
 * @author yz
 * @create 2021-11-16 21:05
 */
@Controller
public class OrderWebController {

    @Autowired
    OrderService orderService;

    /**
     * 购物车跳转确认页
     * @param model
     * @return
     * @throws ExecutionException
     * @throws InterruptedException
     */
    @GetMapping("/toTrade")
    public String toTrade(Model model) throws ExecutionException, InterruptedException {
        OrderConfirmVo confirmVo = orderService.confirmOrder();
        model.addAttribute("orderConfirmData", confirmVo);
        return "confirm";
    }

    /**
     * 下单功能
     * @param vo
     * @return
     */
    @PostMapping("/submitOrder")
    public String submitOrder(OrderSubmitVo vo, Model model, RedirectAttributes redirectAttributes){

        try {
            SubmitOrderRespVo respVo =  orderService.submitOrder(vo);
            if(respVo.getCode() == 0){
                //下单成功
                model.addAttribute("submitOrderResp", respVo);
                return "pay";
            }else {
                String msg = "下单失败";
                switch (respVo.getCode()) {
                    case 1:
                        msg += "订单信息过期,请刷新再次提交";
                        break;
                    case 2:
                        msg += "订单商品价格发生变化,请确认后再次提交";
                        break;
                    case 3:
                        msg += "库存锁定失败，商品库存不足";
                        break;
                }
                redirectAttributes.addFlashAttribute("msg", msg);
                return "redirect:http://order.gulimall.com/toTrade";
            }
        }catch (Exception e){
            if (e instanceof NoStockException) {
                String message = e.getMessage();
                redirectAttributes.addFlashAttribute("msg", message);
            }
            return "redirect:http://order.gulimall.com/toTrade";
        }
    }
}
